Answer :
After paying for the value of the goods and taxes, we will pay 100%+6%=106% of $29.12; this is, the price of the snacks (100%) plus taxes (6%).
Remember that 100%=1, and 6%=0.06; therefore 106%=1.06.
Then,
[tex]29.12\cdot(1.06)=30.8672\approx30.87[/tex]If taxes have to be applied to the $29.12 cost, the total will be $30.8672, approximately $30.87.
On the other hand, if taxes have already been applied to the $29.12 cost, the original price of the product without taxes is
[tex]29.12\cdot(1-0.06)=29.12(0.94)=27.3728\approx27.37[/tex]